王洼矿区5^#煤层煤质特征及成煤环境分析
王高皓， 余飞龙， 马秀军， 刘争， 孙军强
（宁夏回族自治区煤炭地质局， 宁夏 银川 750002）
摘要： 王洼矿区各井田煤质资料较为分散，没有进行系统性的研究，不利于固原市后期对煤炭开发利用的规划部署。
通过分析以往地质资料，对王洼矿区5^#煤层的煤岩特征、化学特征进行研究，并结合沉积环境因素分析其对煤质特征的
控制作用。研究发现，5^#煤层主要为浅湖三角洲体系和河流体系沉积环境，古河流带来的物源控制着5^#
煤层硫分、灰分、显微组分的分布范围， 煤层埋深控制着煤的变质程度， 影响着挥发分的含量。
关键词：延安组；煤质特征；成煤环境；沉积环境；王洼矿区
中图分类号： TD163⁺.1     文献标识码： A     文章编号： 2095-0802-(2021)12-0009-03
Analysis on Coal Quality Characteristics and Coal-forming Environment of 5^# Coal Seam inWangwa Mining Area
WANG Gaohao, YU Feilong, MA Xiujun, LIU Zheng, SUN Junqiang
(Coal Geological Exploration Bureau of Ningxia Hui Autonomous Region, Yinchuan 750002, Ningxia, China)
Abstract: The coal quality data of each mine field in Wangwa mining area are scattered, and there is no systematic study, which
is not conducive to the planning and deployment of coal development and utilization in Guyuan City in the later period. Through
the analysis of previous geological data, this paper studied the coal and rock characteristics and chemical characteristics of 5^# coal
seam in Wangwa mining area, and analyzed the control effect of sedimentary environment factors on coal quality characteristics.
It is found that the sedimentary environment of 5^# coal seam is mainly shallow lake delta system and river system, the provenance
brought by ancient rivers controls the distribution range of sulfur, ash and maceral in 5^# coal seam, and the buried depth of coal
seam controls the metamorphic degree of coal and affects the content of volatile matter.
Key words: Yan'an Formation; coal quality characteristics; coal-forming environment; sedimentary environment; Wangwa mining area